Fig. 4

A 27-year-old patient with die-punch DRF. Radiographic examination showed that the lunate surface of the wrist joint was split longitudinally and collapsed downwards, and the fracture fragment was displaced to the palmar side. A AP radiography showed that the epiphysis and articular surface were involved; B Lateral radiography showed fracture; C Axial view of the articular surface of the radius. Fracture involving articular surface of intermediate column and lateral column are noticed; D Coronal plane, collapse of the lunate articular surface is obvious; E Sagittal plane, bone fragment shifted to dorsal side F Three-dimensional reconstruction of CT image